Apparatus for continuously supplying sheets from supply rolls
US4695007A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 25, 1986 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Nov 25, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2301/46024
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus of this invention includes first and second supply rolls of wrapping film sheets. The film sheet is fed from first supply roll to a wrapping machine. The distal end of the film sheet of the second supply roll is partially fixed by an adhesive tape. In this state, the film sheet cannot be fed from the second supply roll. The second supply roll can be rotated in the forward or reverse direction. The apparatus also includes a knife for cutting the adhesive tape of the second supply roll. When the remaining length of the film sheet fed from the first supply roll becomes short, the knife is brought into contact with the outer surface of the second supply roll. By utilizing the rotation of the roll, the knife is inserted under the distal end of the film sheet of the second supply roll. Thereafter, the knife is moved along the outer surface of the second supply roll in the axial direction thereof, thereby cutting the adhesive tape of the second supply roll. The apparatus also includes a belt conveyor for feeding the film sheet fed from the second supply roll to the feed path of the film sheet fed from the first supply roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.